Coolant temperature
If the coolant along with the engine becomes too hot, a Check Control message is displayed.
BMW X3 Service & Repair Manual > Starter lead: Replacing safety battery terminal (sbk)
CAUTION: Observe safety regulations.
Investigate cause of triggering of safety battery terminal.
To do so, read out fault memory of airbag control unit. Note fault messages
stored in memory. Rectify faults. Then clear fault memory.
Use of safety battery terminal:
From model year 1998 in ...